'a changing pattern' is correct and usable in written English.
You can use it when referring to something that is constantly evolving or developing over time. For example: "The stock market has had a changing pattern over the last decade."
The Intergovernmental Panel on Climate Change last September pointed to a changing pattern of extreme weather since 1950, with more heatwaves and downpours in many parts of the world, as the Earth has warmed by about 0.7C.
Such attacks reflect a changing pattern in the war, senior American officers say.
They indicate a changing pattern of religious life in which traditional or inherited identities are less taken for granted than they used to be.
"Manufacturing exporters have been affected by the falling Euro, while services businesses in hospitality are seeing a changing pattern of spending resulting from the lowered alcohol limit while driving," he said.
Friedrich-Wilhelm Gerstengarbe, a scientist and assistant director of the Potsdam Institute for Climate Impact Research, said he considered global warming a factor in a changing pattern of extreme weather conditions of drought, storms, and floods.
Instead, based on what we'd learnt from the intolerance testing, we started Katy on a food regime and a homeopathic remedy and we began a nightmare three months during which she had a changing pattern of daily minor seizures, some quite violent.
It was that simple in the end but what came earlier was a constantly changing pattern of events over a stage with a brutal profile; a final 100km that was worthy of a one-day Classic if not better than some of recent date.
During the course of the disease in patients with SLC, we observed a progressively changing pattern on SD-OCT scans that was consistent with the abnormal FAF signals detected simultaneously.
Cross-sectional and longitudinal MRI studies have revealed a dynamically changing pattern of gray-matter density from childhood to early adulthood, which are broadly consistent with the dual-systems theory.
The results confirm a rapidly changing pattern of sleep during pregnancy and the first years.
Previouse studies on HAV genotypes in Republic of Korea have shown a distinct changing pattern in circulating HAV genotypes over the past 10 years [ 24].
